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      1 package org.bouncycastle.x509.extension;
      2 
      3 import java.io.IOException;
      4 import java.security.cert.CertificateParsingException;
      5 import java.security.cert.X509Certificate;
      6 import java.util.ArrayList;
      7 import java.util.Collection;
      8 import java.util.Collections;
      9 import java.util.Enumeration;
     10 import java.util.List;
     11 
     12 import org.bouncycastle.asn1.ASN1ObjectIdentifier;
     13 import org.bouncycastle.asn1.ASN1OctetString;
     14 import org.bouncycastle.asn1.ASN1Primitive;
     15 import org.bouncycastle.asn1.ASN1String;
     16 import org.bouncycastle.asn1.DEROctetString;
     17 import org.bouncycastle.asn1.DERSequence;
     18 import org.bouncycastle.asn1.x500.X500Name;
     19 import org.bouncycastle.asn1.x509.Extension;
     20 import org.bouncycastle.asn1.x509.GeneralName;
     21 import org.bouncycastle.util.Integers;
     22 
     23 
     24 /**
     25  * @deprecated use org.bouncycastle.cert.jcajce.JcaX509ExtensionUtils
     26  */
     27 public class X509ExtensionUtil
     28 {
     29     /**
     30      * @deprecated use org.bouncycastle.cert.jcajce.JcaX509ExtensionUtils.parseExtensionValue()
     31      */
     32     public static ASN1Primitive fromExtensionValue(
     33         byte[]  encodedValue)
     34         throws IOException
     35     {
     36         ASN1OctetString octs = (ASN1OctetString)ASN1Primitive.fromByteArray(encodedValue);
     37 
     38         return ASN1Primitive.fromByteArray(octs.getOctets());
     39     }
     40 
     41     /**
     42      * @deprecated use org.bouncycastle.cert.jcajce.JcaX509ExtensionUtils.getIssuerAlternativeNames()
     43      */
     44     public static Collection getIssuerAlternativeNames(X509Certificate cert)
     45             throws CertificateParsingException
     46     {
     47         byte[] extVal = cert.getExtensionValue(Extension.issuerAlternativeName.getId());
     48 
     49         return getAlternativeNames(extVal);
     50     }
     51 
     52     /**
     53      * @deprecated use org.bouncycastle.cert.jcajce.JcaX509ExtensionUtils.getSubjectAlternativeNames()
     54      */
     55     public static Collection getSubjectAlternativeNames(X509Certificate cert)
     56             throws CertificateParsingException
     57     {
     58         byte[] extVal = cert.getExtensionValue(Extension.subjectAlternativeName.getId());
     59 
     60         return getAlternativeNames(extVal);
     61     }
     62 
     63     private static Collection getAlternativeNames(byte[] extVal)
     64         throws CertificateParsingException
     65     {
     66         if (extVal == null)
     67         {
     68             return Collections.EMPTY_LIST;
     69         }
     70         try
     71         {
     72             Collection temp = new ArrayList();
     73             Enumeration it = DERSequence.getInstance(fromExtensionValue(extVal)).getObjects();
     74             while (it.hasMoreElements())
     75             {
     76                 GeneralName genName = GeneralName.getInstance(it.nextElement());
     77                 List list = new ArrayList();
     78                 list.add(Integers.valueOf(genName.getTagNo()));
     79                 switch (genName.getTagNo())
     80                 {
     81                 case GeneralName.ediPartyName:
     82                 case GeneralName.x400Address:
     83                 case GeneralName.otherName:
     84                     list.add(genName.getName().toASN1Primitive());
     85                     break;
     86                 case GeneralName.directoryName:
     87                     list.add(X500Name.getInstance(genName.getName()).toString());
     88                     break;
     89                 case GeneralName.dNSName:
     90                 case GeneralName.rfc822Name:
     91                 case GeneralName.uniformResourceIdentifier:
     92                     list.add(((ASN1String)genName.getName()).getString());
     93                     break;
     94                 case GeneralName.registeredID:
     95                     list.add(ASN1ObjectIdentifier.getInstance(genName.getName()).getId());
     96                     break;
     97                 case GeneralName.iPAddress:
     98                     list.add(DEROctetString.getInstance(genName.getName()).getOctets());
     99                     break;
    100                 default:
    101                     throw new IOException("Bad tag number: " + genName.getTagNo());
    102                 }
    103 
    104                 temp.add(list);
    105             }
    106             return Collections.unmodifiableCollection(temp);
    107         }
    108         catch (Exception e)
    109         {
    110             throw new CertificateParsingException(e.getMessage());
    111         }
    112     }
    113 }
    114